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6-1. Specifications
6
Vehicle specifications
RX400h_U
Tire related termMeaning
Ply separationA parting of rubber compound between adjacent
plies
Pneumatic tire
A mechanical device made of rubber, chemicals, fab-
ric and steel or other materials, that, when mounted
on an automotive wheel, provides the traction and
contains the gas or fluid that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that extend to
the beads are laid at substantially 90 degrees to the
centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and at
higher inflation pressures than the corresponding
standard tire
Section width
The linear distance between the exteriors of the side-
walls of an inflated tire, excluding elevations due to
labeling, decoration, or protective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber compound from the cord
material in the sidewall
Snow tire
A tire that attains a traction index equal to or greater
than 110, compared to the ASTM E-1136 Standard
Reference Test Tire, when using the snow traction test
as described in ASTM F-1805-00, Standard Test
Method for Single Wheel Driving Traction in a
Straight Line on Snow-and Ice-Covered Surfaces,
and which is marked with an Alpine Symbol (
)
on at least one sidewall
Te s t r i mThe rim on which a tire is fitted for testing, and may be
any rim listed as appropriate for use with that tire
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6-1. Specifications
RX400h_U
*:Table 1 Occupant loading and distribution for vehicle normal load for
various designated seating capacities
Tire related termMeaning
Tr e a dThat portion of a tire that comes into contact with the
road
Tr e a d r i bA tread section running circumferentially around a
tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indicators
(TWI)The projections within the principal grooves
designed to give a visual indication of the degrees of
wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire assembly
securely during testing
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6-1. Specifications
6
Vehicle specifications
RX400h_U
Designated seating
capacity, Number of occupantsVehicle normal load,
Number of occupantsOccupant distribution in
a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second
seat, 1 in third seat, 1 in
fourth seat
16 through 207
2 in front, 2 in second
seat, 2 in third seat, 1 in fourth seat
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RX400h_U
6-2. Customization
Customizable features
ItemFunctionDefault settingCustomizedsetting
Wi re le ss
remote con-
trol
(
→P. 36)
Wireless remote controlONOFF
Unlocking operation
Driver's door
unlocked in
one step, all
doors
unlocked in
two steps
All doors
unlocked in one step
Automatic door lock
function to be activated if
door is not opened after
being unlocked
ONOFF
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked
60 seconds
30 seconds
120 seconds
Operation signal
(Emergency flashers)ONOFF
Operation signal
(Buzzer) ONOFF
Your vehicle includes a variety of electr onic features that can be personal-
ized to your preferences. Programming these preferences requires spe-
cialized equipment and may be performed by an authorized Lexus
dealership.
Some function settings are changed simultaneously with other functions
being customized. Contact your Lexus dealer for further details.
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6-2. Customization
6
Vehicle specifications
RX400h_U
*: It is possible to select them only when the power back door operation withthe open/close switch is made impossible when the door is locked.
Wireless
remote con-
trol
(
→P. 36)
Buzzer sounds when
pushing LOCK with any
door not closed
ONOFF
Power back door opera-
tionPush and holdPush twice*
One short push*
Pa n i c f u n c t i o nONOFF
Pow e r b a c k
door
(
→P. 44)
Switch operationPush and holdOne short push
Wireless remote control
linked operationONOFF
Operation signal volumeOFFHigh
Low
Operation when door
locksPo s s i b l eImpossible
Assistance of opening
with door openerOFFON
Sensitivity of jam protec-
tion functionLevel 1Level 2 to 4
ItemFunctionDefault settingCustomized
setting
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6-2. Customization
RX400h_U
ItemFunctionDefault settingCustomizedsetting
Door lock
(
→P. 3 9 )
Unlocking using a key
Driver's door
unlocked in
one step, all
doors
unlocked in
two steps
All doors
unlocked in one step
Speed-detecting auto-
matic door lock functionOFFON
Opening driver's door
unlocks all doorsOFFON
Shifting gears to P
unlocks all doorsONOFF
Shifting gears to position
other than P locks all
doors
ONOFF
Pow e r
windows
(
→P. 7 2 )
Linked door lock/unlock
operationONOFF
Wireless remote control
linked operationON
(open only)OFF
Moon roof
(
→P. 7 5 )
Linked door lock/unlock
operationONOFF
Wireless remote control
linked operationON
(open only)OFF
Automatic
light control
system
(
→P. 1 4 8 )
Light sensor sensitivityLevel 3Level 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 second
60 seconds
90 seconds
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6-2. Customization
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Vehicle specifications
RX400h_U
Windshield
wipers and
washer
(
→P. 1 5 2 )
Switching operation when
the vehicle is stationaryONOFF
Illumination
(
→P. 2 6 0 )
Time elapsed before lights
turn off15 seconds7. 5 s e c o n d s
30 seconds
Front footwell lightingONOFF
Inside door handle well
lightingONOFF
Operation when the
doors are unlockedONOFF
Operation after the
hybrid system is offONOFF
Steering
wheel
(
→P. 66)
Automatic tilt-away steer-
ing columnONOFF
ItemFunctionDefault settingCustomizedsetting
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RX400h_U
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Power window
• After reconnecting or changing the battery
• After changing a fuse
P. 7 2
Power back door
• After reconnecting or changing the battery
• After changing a fuse
P. 4 4
Engine oil maintenance
dataAfter changing engine oilP. 3 1 8
Ti r e p r e s s u r e w a r n i n g
system
• When changing the tire inflation pressure by changing traveling speed
or load weight, etc.
•When changing the tire size.
P. 3 3 1
After reconnecting or performing maintenance on the 12-volt battery, the
hybrid system may not start. (
→P. 328) Also, the following items must be
initialized for normal system operation.